Tank engines for yard switching or short moves along the mainline of this tortuous road over the Andes mountains. Arrayed along the Belpaire boiler, front to back , were the headlight, straight stack with slight bell, cylindrical sand dome, steam dome, bell, second sand dome, flat top to the firebox with safety-valve stand, capacious cab, and rear headlight -- all with a long tank flanking the boiler on each side.
By 1900, the FCAB railway covered 574 miles of mostly high-altitude terrain in which the heavy trains went "downhill" and the supply trains traveled "uphill". It later extended to La Paz, in Bolivia and its system included 1,821 miles of which 721 miles of trunk line connected La Paz to the Pacific at Antofagasta.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 2722 |
| Railroad | Antofagasta (Chile ) & Bolivia (FCAB) |
| Country | Chile |
| Whyte | 0-6-4T |
| Number in Class | |
| Road Numbers | |
| Gauge | 2'6" |
| Number Built | |
| Builder | Hunslet Engine Co & Hunslet Taylor, Johannesburg |
| Year | 1900 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | 87,920 / 39,880 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 36 / 914 |
| Boiler Pressure (psi / kPa) | 170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 18" / 381x457 |
| Tractive Effort (lbs / kg) | 16,256 / 7373.61 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 15 / 1.39 |
| Evaporative Heating Surface (sq ft / m2) | 740 / 68.77 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 740 / 68.77 |
| Evaporative Heating Surface/Cylinder Volume | 201.00 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2550 |
| Same as above plus superheater percentage | 2550 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |